Besides, spraying 20% fenvalerate 1: 4000 or 80% DDVP with 1000~2000 dilution to kill the down the larvae, or spraying 60% 666 dust on the bottom of bamboo trunk are effective.
Methods: Ap nitrophenol valerate microassay method for CaE activity was used to determine the reactivating effect of DAM on mouse small intestine CaE inhibited by DDVP in vitro and in vivo.
方法:用微量对硝基酚戊酸酯法测定DAM 对敌敌畏体内外抑制的小鼠小肠羧酸酯酶的重活化作用。
House flies had evoluted high resistance to DDVP in Yizheng and Yangzhong. In Yizheng, house flies had evoluted highest resistance to deltamethrin, while in Yangzhong the resistance is low.
仪征、扬中地区家蝇对敌敌畏产生高抗,仪征地区家蝇对溴氰菊酯最高抗,扬中地区则为低抗。
The resistant groups of Culex pipiens pallens against DDVP have increased, so we should not use DDVP in the coming days.
结论:对敌敌畏的抗性种群已广泛产生,应限制使用。
So, DDVP should be inhibited, and the mixed and rotational use measure could be taken to avoid and delay the development of resistance.
对残杀威也产生了一定程度的抗性,且有发展的趋势,应换用或轮用其他杀虫剂,以避免或延缓抗性的发展。
Results indicated that, of the four insecticides, DDVP proved to enjoy the best required qualities while Malathion turned out much better than Cypermethrin and Lambda-cyhalothrin.